import pandas as pd
import matplotlib.pyplot as plt
df=pd.read_excel('某店铺促销方式分析.xlsx')
plt.rcParams['font.sans-serif'] = 'SimHei'
plt.pie(x=df['购买人数'],labels=df['促销方式'],autopct='%.2f%%',startangle=90,counterclock=False,wedgeprops={'linwidth':1,'edgecolor':'white'})
plt.title('某店铺不同促销方式下购买人属于占比饼图')
plt.show()